Degree Completions Overview:
Certification of degree completion is maintained by Princeton University's Office of the Registrar, both for internal purposes and external reporting to IPEDS (Integrated Post-secondary Education Data System).
"The Office of the Registrar provides academic and enrollment services in support of Princeton's diverse academic community...We coordinate services in the areas of course information, course selection, grading, concentration declaration, degree progress, classroom assignment, certification of enrollment and degrees awarded..."